An electrical connector assembly having a terminal stuffer member for securely maintaining a plurality of terminal members within a connector body. The terminal stuffer member includes a plurality of flexible locking arm members. The connector body includes a plurality of openings adapted to slidably receive a corresponding plurality of terminal members therein. At least one wall portion of the connector body includes a plurality of recessed portions associated with the openings for the terminal members, with each of the recessed portions having a ramped portion associated therewith. When the terminal stuffer member is slidably inserted into a first, preloaded position, the locking arm members are slidably received within the recessed portions and therefore do not interfere with the openings into which the terminal members are inserted. Accordingly, the terminal members may be inserted into the connector body when the terminal stuffer member is in the preloaded position. When the terminal member is further slidably engaged into a second, locked position with the connector body, the ramped portions urge the locking arm members outwardly into abutting engagement with a portion of each terminal member, thus securely holding the terminal member within the connector body. In the preferred embodiments a pair of flexible latching arm members are formed on the terminal stuffer member.